Migrate anyhow::bail! -> anyhow::anyhow!

Summary:
This is in our code convention:

https://www.internalfb.com/code/fbsource/[ca31f968f490ddb6b5f0cda213650f85f5efa9c2]/fbcode/buck2/gazebo_lint/gazebo_lint/src/lib.rs?lines=135-139

(Somehow it does not seem to always work though)

We can discuss this code convention, but for now I'm migrating gazebo-lint to patternlint (D51170750).

Reviewed By: ndmitchell

Differential Revision: D51170749

fbshipit-source-id: 344c55ae97fdde750490d8c2916ee7a23637a5da

starlark_bin/bin/bazel.rs

@@ -141,7 +141,7 @@ pub(crate) fn main(
     prelude: &[PathBuf],
 ) -> anyhow::Result<()> {
     if !lsp {
-        anyhow::bail!("Bazel mode only supports `--lsp`");
+        return Err(anyhow::anyhow!("Bazel mode only supports `--lsp`"));
     }
 
     // NOTE: Copied from `main.rs`